Trying to find some information on these two for a friend. William was born September 24, 1809 and Agnes was born in 1801. They immigrated from Scotland to the U.S. in about the mid 1850's. Agnes either died at sea or soon after arrival in New Tork She was buried there, William went on to family members in Wisconsin. Trying to find their immigration date. Unable to locate it yet. Any idea's?

Bob